Fixed-mounted circuit breaker, IEC 60947-2, size 1, 4-pole, N pole on left, In=4000 A up to 690 V AC 50/60 Hz, breaking capacity H Icu=100/85 kA at 500/690 V, tripping unit ETU300 LSI optimized for standard applications, without display, basic protection LT, ST, INST, including protection of the N conductor (internal neutral point sensor available) trip alarm switch (1 x CO), connection at rear horizontal without Com & metering function Manual operating mechanism with mechanical closing, without Spring charging motor, Ready-to-close signal. switch, Auxiliary switches 2NO+2NC, without Closing coil (CC), manual operating mechanism with mechanical closing, without Remote trip alarm reset coil (RR), without 2nd shunt trip, without 1st Shunt trip